Since the last update, Marvelloous designer has been unable to open ANY of my zprj file. I've checked and unzipped some, and found most have not been corrupted. Projects which I had been able to open previously without issue is now unable to open. Even one I had just saved is showing up with this message.
I know a few people have had this issue and so if anyone has a solution that would be much appreciated. It feels like its a programme issue not the file as this is happening to ALL my files.